beryl-manager
a@localhost ~ $ XGL Absent, checking for NVIDIA
Nvidia Absent, checking for texture_from_pixmap
texture_from_pixmap Present
beryl: No composite extension
Window manager warning: last_user_time (1070071808) is greater than comparison timestamp (2455919).  This most likely represents a buggy client sending inaccurate timestamps in messages such as _NET_ACTIVE_WINDOW.  Trying to work around...
Window manager warning: 0x3200007 (Conquer yo) appears to be one of the offending windows with a timestamp of 1070071808.  Working around...
Window manager warning: last_focus_time (1070071808) is greater than comparison timestamp (2456062).  This most likely represents a buggy client sending inaccurate timestamps in messages such as _NET_ACTIVE_WINDOW.  Trying to work around...
Window manager warning: Received a NET_CURRENT_DESKTOP message from a broken (outdated) client who sent a 0 timestamp
Window manager warning: Received a NET_CURRENT_DESKTOP message from a broken (outdated) client who sent a 0 timestamp
Window manager warning: Received a NET_CURRENT_DESKTOP message from a broken (outdated) client who sent a 0 timestamp